Sentences with phrase «for sulfur dioxide»

The proposed limits for sulfur dioxide (SO2) and nitrogen oxides (NOx) do not meet the level of stringency required by the Clean Air Act.

The market for trading carbon credits will be much more complex and difficult to police than the market for the sulfur dioxide credits that eliminated acid rain.

And for sulfur dioxide, it's a smaller market.

An ISO New England study found that as the fuel mix shifted toward natural gas, regional emissions dropped 91 percent for sulfur dioxide and 56 percent for nitrogen oxide (as well as 22 percent for carbon dioxide) between 2006 and 2015.

A cap - and - trade system worked for sulfur dioxide.

Enron had banked on trading permits for carbon dioxide emissions, which would have been based upon the existing permit system for sulfur dioxide emissions from coal - burning electric power plants.

The EPA's «notice of violation,» said improvements PGE made to Boardman in 1998 and 2004 boosted pollution and should have triggered expensive pollution controls for sulfur dioxide, a contributor to acid rain.

Due to air quality issues, in 2012 twenty - three states will face stricter standards for sulfur dioxide and nitrous oxide emissions.

According to the study, regional emissions dropped 65 percent for nitrogen oxide, 92 percent for sulfur dioxide and 35 percent for carbon dioxide between 2005 and 2014.

She used empirical data from the world's two most successful CTPs, the U.S. national market for sulfur dioxide (SO2) control and the northeast and mid-Atlantic states» market for nitrogen oxide (NOx) control.

We used the US Environmental Protection Agency's (EPA's) detailed CMAQ model to project emissions for sulfur dioxide and nitrogen oxides to calculate changes in air quality under each scenario in 2020 compared to business as usual.

Figure 2, at right: Emissions trends used in the three models for sulfur dioxide (SO2; top) and black carbon (BC; bottom) following the A1B mid-range socio - economic storyline.

The report cited similar reliability scares evoked when the industry restructured two decades ago to allow for retail competition, as well when various emissions rules were put in place over the years for sulfur dioxide, mercury and cross-state pollution.

For more than two decades, power companies and grid operators have met pollution control limits for sulfur dioxide and other pollutants by ramping up cleaner generation and ramping down dirty generation, using both smokestack pollution controls and pollution reduction credits.

At the time when these eruptions took place, 717 million years ago, the Franklin large igneous province was near the equator, making it easier for the sulfur dioxide plumes to reach, and cross, the stratosphere and the troposphere.

In addition to trading greenhouse gases, Evolution helps broker deals for biofuels, natural gas, the uranium fuel for nuclear reactors, renewable energy credits, air pollution permits for sulfur dioxide and nitrogen oxides, even insurance against bad weather.

Backed by 20 countries — and predictably, opposed by countries that still rely heavily on coal (Figure 1)-- the BREF includes new emission limits, expressed as wide, ambiguous ranges, for sulfur dioxides (SOx), nitrogen oxides (NOx), mercury, and particulate matter.

Not exact matches

In the transition period the conditions for exporting organic wine to the US are the same laid down in the US organic regulation: «Organic», when no sulfur dioxide is added; «Made with organic grapes», if sulfur dioxide is added, with a maximum level present in the finished product of 100 parts per million.

«We're the world standard for tracking carbon dioxide, carbon monoxide, methane and sulfur hexafluoride.»

Altogether, the unreported and underreported sources account for about 12 percent of all human - made emissions of sulfur dioxide — a discrepancy that can have a large impact on regional air quality, said McLinden.

If mimicking a massive volcanic eruption by spraying sulfur dioxide into the air or flying thousands of mirrors into space to shade Earth to halt climate change doesn't cut it for you, how about this?

And all of that production means that China is bearing the burden of the pollution that can go along with the manufacture of such renewable energy for other countries — whether the acid rain — forming sulfur dioxide emitted from making the steel in a wind turbine's blade or the noxious chemicals left over after manufacturing specialized silicon, or glass, that can turn sunshine into electricity.

Pollution is a concern too: Shipping is responsible for 3 percent of global carbon dioxide emissions, similar to the airline industry, along with substantial particulates and sulfur dioxide.

Under that program, power plant owners who installed equipment to scrub the sulfur dioxide out of the emissions from their smokestacks could then sell for a profit any leftover allowances to other polluters unable or unwilling to make the pricey upgrades.

The sulfur could produce torrents of acid rain, the carbon dioxide and methane could lead to rapid greenhouse warming, and life on Earth just might not have been worth living for a while.

For several years, the Environmental Protection Agency has allowed companies that emit sulfur dioxide to the air to buy or sell credits on the open market.

Whether it's physical shipments of the fossil fuel or the buying and selling of the permits for the pollution that burning it causes — Evolution's first trade was a sulfur dioxide allowance between Enron and Dynegy in February of 2000 — the brokerage makes its living on coal.

The findings: carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorous — key ingredients for life — plus chemicals such as sulfur dioxide and hydrogen sulfide that could provide energy for microorganisms.

For example, in 1991 the volcano Mount Pinatubo in the Philippines spewed 20 million tons of sulfur dioxide into the stratosphere, which spans altitudes from 10 to 50 kilometers.

Ground - level ozone, sulfur dioxide, nitrogen dioxide carbon monoxide are especially harmful for senior citizens, children, and people with heart and lung conditions such as emphysema, bronchitis, and asthma.

Air pollution control devices called scrubbers use a sprayed slurry of ground limestone and water to remove sulfur dioxide from gases formed in coal combustion, said Tom Schmaltz, environmental director for Headwaters Resources, a world leader in coal combustion products.

The policy document also set new targets for the closure of coal - fired heating systems as well as the installation of equipment to reduce sulfur dioxide and nitrogen oxide emissions at power stations, steel mills and cement plants.

Furthermore, if a volcano had been responsible for the methane, it would also have pumped out enormous quantities of sulfur dioxide, and Mars's atmosphere is devoid of sulfur compounds.

Looking through the data collected by the telescope, astronomers were able to detect a pattern of spikes for various life - supporting molecules: water, carbon monoxide, formaldehyde, methanol, dimethyl ether, hydrogen cyanide, sulfur oxide and sulfur dioxide.

The specialized instruments onboard the aircraft sampled the plume for aerosol particle size distribution and composition as well as concentrations of pollutant gases such as sulfur dioxide, nitric oxide, nitrogen dioxide, ozone, and volatile organic compounds (VOCs).

The large «metal dome» collects air samples for analysis of environmental pollutants, while the three small cylinders measure nitrogen dioxide (blue), sulfur dioxide (red) and ozone (white).

This is more than the capturing of 41 percent of sulfur dioxide and 90 percent of mercury emissions called for by the new mercury and air toxic standards (MATS) issued by the EPA in December 2011.

By means that are not entirely understood, the tubeworm provides all the chemicals necessary for the bacteria to make food, including sulfur, oxygen, and carbon dioxide, and the bacteria manufacture sugars or some other form of energy - rich molecules that provide nutrition to the tubeworm.

«Evaluation of proton - conducting membranes for use in a sulfur dioxide depolarized electrolyzer.»

The image, based on her work and that of PNNL's H. Todd Schaef, depicts the potential of carbonate minerals to remove sulfur dioxide, a troubling compound in the quest for clean energy.

To provide guidance for future high - resolution simulations, Dai et al. used a computationally cheaper, two - dimensional chemical transport model to systematically estimate the effects of injecting sulfur dioxide and sulfate aerosols at a range of altitudes, latitudes, and time frames for 62 separate scenarios.

Sulfur dioxide contributes to particulate pollution — which can be damaging for human health, and acid rain — which can damage ecosystems and crops.

The study used IIASA's GAINS model, along with emissions reports from countries, to calculate sulfur dioxide emissions for the entire world on a detailed regional scale.

Lignosulfonate is typically combusted on site, releasing carbon dioxide into the atmosphere after sulfur has been captured for reuse.

Currently he leads the component development of the sulfur dioxide depolarized electrolysis cell for the production of hydrogen in the hybrid sulfur cycle and the development of non-PGM catalysts for PEMFCs.

«The key finding of the study is that they get a larger amount of sulfur and a smaller amount of carbon dioxide ejected than in other studies,» said Georg Feulner, a climate scientist at the Postdam Institute for Climate Impact Research in Germany.

The Usnea harvested for our tincture is from an altitude of 5,000 feet that is isolated from sulfur dioxide pollution.

Raisins are often treated with sulfur dioxide gas to preserve their color, and sulfur has been explored for its role in joint health.

From aspartame to sulfur dioxide, it's good to know what preservatives we are ingesting, and what they mean for our bodies.

For the past ten years the plant has been operating without the level of emissions controls to limit sulfur dioxide and nitrogen oxide emissions as stipulated in the Clean Air Act.